Answer:
Yes
Explanation:
Chemical reactivity is a property of matter that does not depend on amount of each substance used.
If two substances can react with each other, they will always react together even at trace amounts. The only difference that will be observed when a larger concentration of reactants are used is that the rate of reaction is faster than in the presence of trace amounts.
Thus, similar conclusions about the reactivity of hydrogen with chlorine can be arrived at using both 25 milligrams each of hydrogen and chlorine, and 1000 times this amount of each reactant.